Exterior surface for a vehicle liftgate/tailgate panel



FIG. 1 is a front and right side perspective view of an exterior surface for a vehicle liftgate/tailgate panel, the broken line showing of the vehicle is for illustrative purposes only and forms no part of the claimed design;

FIG. 2 is an enlarged front view of an exterior surface for a vehicle liftgate/tailgate panel of FIG. 1; and,

FIG. 3 is a side view of the exterior surface for a vehicle liftgate/tailgate panel of FIG. 1. 

The ornamental design for an exterior surface for a vehicle liftgate/tailgate panel, as shown and described. 